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ID SCROLL • SCROLL LIST ABAP Statement
SCROLL LIST Short Reference
ABAP_SYNTAX SCROLL LIST $[ horizontal$] $[vertical$] $[ • idx$].
ABAP Addition ... • idx
What does it do? This statement scrolls the display area of a list stored in the list buffer to the position specified in horizontal and/or vertical . At least one of these additions must be specified, whereby all horizontal specifications refer to the columns of a displayed list. The corresponding section is displayed when the list is next displayed. If the SCROLL statement is not used, a list is displayed during the initial display, starting from the first column of the first line. If the user navigates from a details list back to a lower list level, the list is displayed with the section in which it was last displayed. The SCROLL statement sets a new first column, a new first line, or both. Each SCROLL statement sets only the size specified in it, without changing any positions that are not affected. • • SCROLL LIST
ABAP Addition
What does it do? The list level can be specified with the addition •, where idx expects a data object of type i, which contains the list index. The value of idx must be greater than or equal to 0. If the addition • is not specified, the list level 0 (the basic list itself) is selected when the basic list is created and the list level at which the event was raised (sy-listi ) is selected when a list event is processed. If the list level specified in idx is not available, sy-subrc is set to the value 8. System Fields sy-subrcMeaning 0Screen section was scrolled successfully. 4Complete scrolling not possible because the list margin was reached. 8Scrolling not possible because the specified list level does not exist.
Latest notes: While scrolling through the list that is being created (sy-lsind ), it should be noted that a SCROLL statement is ignored prior to the first output statement, since the list does not yet exist in the list buffer. ABAP_HINT_END
Example ABAP Coding
By double-clicking the basic list, it is possible to scroll down this list in the event block AT LINE-SELECTION to the page entered in a selection screen. The lines on the page retain their original position with reference to the page header by using sy-staro. However, it is not necessary to set the column to sy-staco explicitly, since this position is retained during vertical scrolling. ABEXA 00564 ABAP_EXAMPLE_END
